EP3179593A1 - Procédé de préparation d'une réserve d'énergie pour une installation d'alimentation en énergie - Google Patents

Procédé de préparation d'une réserve d'énergie pour une installation d'alimentation en énergie Download PDF

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Publication number
EP3179593A1
EP3179593A1 EP15199489.4A EP15199489A EP3179593A1 EP 3179593 A1 EP3179593 A1 EP 3179593A1 EP 15199489 A EP15199489 A EP 15199489A EP 3179593 A1 EP3179593 A1 EP 3179593A1
Authority
EP
European Patent Office
Prior art keywords
energy
supply system
local
event
reserve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15199489.4A
Other languages
German (de)
English (en)
Inventor
Christian Kasberger
Martin Wolf
Harald Hofer
Hannes Heigl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fronius International GmbH
Original Assignee
Fronius International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fronius International GmbH filed Critical Fronius International GmbH
Priority to EP15199489.4A priority Critical patent/EP3179593A1/fr
Priority to MX2018007062A priority patent/MX2018007062A/es
Priority to BR112018011381-6A priority patent/BR112018011381B1/pt
Priority to PL16816232T priority patent/PL3387727T3/pl
Priority to CN201680072651.9A priority patent/CN108370161B/zh
Priority to ES16816232T priority patent/ES2820799T3/es
Priority to AU2016368519A priority patent/AU2016368519B2/en
Priority to US15/778,575 priority patent/US10680444B2/en
Priority to PCT/EP2016/080407 priority patent/WO2017097967A1/fr
Priority to EP16816232.9A priority patent/EP3387727B1/fr
Publication of EP3179593A1 publication Critical patent/EP3179593A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/30—The power source being a fuel cell
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/14—District level solutions, i.e. local energy networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]

Definitions

  • the invention relates to a method for providing an energy reserve in a power supply system and in particular to a control unit for a power supply system, which is suitable to obtain energy from a power grid or to feed into a power grid.
  • Intelligent energy management is becoming increasingly important, especially in the use of renewable resources for energy.
  • energy For the supply of energy to users or consumers, especially with electrical energy, more and more energy is generated from renewable resources, especially from sunlight, wind power or water power.
  • the energy production is increasingly at least partially decentralized, with users or consumers not only consume energy, but also generate and feed themselves into an energy distribution network or power grid.
  • generated energy which a user or consumer obtains from a renewable energy source and which the respective user currently does not need, is fed into an energy distribution network, for example a public low-voltage network.
  • a photovoltaic system can, depending on the time of day and the current weather conditions, gain electricity from sunlight, which the generating user does not or not completely consume at the time of production.
  • the energy stored in the local energy storage unit of the energy supply system represents an energy reserve for the respective user of the energy supply system, which allows him local energy consumption units even in case of failure or strong reduction of locally generated energy as well as reduction or failure of energy obtainable from the power grid for to provide energy for a certain period of time and thus to operate.
  • control unit has an evaluation unit which receives event messages, the messages received from message sources and / or from sensors Include sensor data that is used to predict future events relevant to the local energy supply.
  • control unit adjusts the energy reserve as a function of a configuration of the energy supply system stored in a configuration data memory.
  • control unit automatically maximizes the self-energy consumption of the amount of energy generated by the local power generation units of the energy supply system by the local energy consumption units of the energy supply system with set energy reserve.
  • the local power generation units of the energy supply system generate energy from renewable resources, in particular from sunlight or wind power, and / or from non-renewable resources, in particular from fuels.
  • the energy storage system's local energy stores comprise battery storage units for storing electrical energy, storage units for storing potential and / or kinetic energy, fuel storage units for storing chemical energy and / or thermal storage units for storing thermal energy.
  • the energy reserve adapted by the control unit is stored in a local energy store the energy supply system or distributed on several different local energy storage devices of the power system stored.
  • the energy supply system is at a resulting from the predicted events expected waste of locally generated energy and / or at an expected drop in the energy from the energy supply network obtainable energy and / or an expected increase in locally consumed energy, the stored energy reserve the control unit of the power supply system automatically increases as a precautionary measure.
  • the stored energy reserve is transmitted in the event of an expected increase in the locally generatable energy resulting from the predicted events and / or an expected increase in the energy obtainable from the energy supply network and / or at an expected decrease in the locally consumed energy the control unit of the power supply system automatically reduced as a precaution.
  • control unit adjusts an adaptation rate with which the energy reserve stored in the at least one energy store is adapted, depending on the own energy consumption and / or a lead time between the receipt of an event message announcing at least one future event, and the actual event occurrence of the event announced by the event message.
  • control unit adjusts the amount of energy stored in the at least one energy storage energy reserve depending on a predicted or probable event duration of the event announced in the event message.
  • a processing unit which pre-filters event messages, in particular messages originating from a multiplicity of different heterogeneous message sources, or sensor data originating from a multiplicity of different heterogeneous sensors with regard to their relevance to the local energy supply of the energy supply system and / or preprocessed.
  • the processing unit transmits the filtered and / or preprocessed event messages to the control unit for dynamically adapting the energy reserve stored in the at least one local energy store of the energy supply system and / or for dynamically adapting the adaptation rate with which the energy reserve is adjusted.
  • the processing unit carries out a weighting of the event messages in terms of their reliability.
  • the event messages comprise messages which are relevant for the ongoing network operation of the energy supply network.
  • these event messages comprise infrastructure messages regarding the public infrastructure and / or network infrastructure originating from a server of a network operator and / or a building authority.
  • the event messages comprise georeferenced weather forecast messages and / or weather warnings originating from a server of a weather forecasting service and / or an insurance company.
  • the event messages have messages regarding the fuel supply with fuels originating from a server of a fuel supplier and / or a news service.
  • the event messages sensor data and / or parameters, in particular sensor data and / or parameters of the local power generation units, the local energy consumption units, the local energy storage units and / or the power grid.
  • control unit having the features specified in claim 13.
  • the invention accordingly provides a control unit for a power supply system, in particular for a power supply system, which is suitable for drawing energy from a power supply network or feeding it into the energy supply network, wherein the control unit own energy consumption of the energy generated by at least one local power generation unit of the power plant by at least one local Energy consumption unit of the energy supply system and controls the amount of energy stored in at least one local energy storage of the power system, wherein the control unit, after detecting at least one foreseeable future event affecting the amount of energy of the energy producible by the power generation units and / or the amount of energy obtainable from the power grid and / or the amount of energy consumed by the energy consumption units, one in the at least one local Energy storage as a precaution dynamically adjusts the stored energy reserve depending on the detected events before these events occur.
  • control unit has a user interface via which the energy reserve stored in the at least one local energy storage unit of the energy supply system can be set manually by a user.
  • control unit is a local control unit provided in the energy supply system.
  • control unit is a remote control unit which communicates with the energy supply system via a communication interface.
  • control unit is integrated in a portable device and executes an application for dynamically adapting the stored energy reserve of the energy supply systems.
  • control unit is integrated in a mobile device.
  • the invention further provides a method for providing an energy reserve in a power supply system having the features specified in claim 15.
  • the locally stored energy reserve is additionally set as a function of a current configuration of the energy supply system.
  • a self-energy consumption of the amount of energy generated by local energy generating units of the energy supply system is maximized by local energy consumption units of the energy supply system when the energy reserve is set.
  • the power supply network is monitored with regard to its frequency and / or with respect to harmonics and, if a possible power failure is detected, the energy reserve is adjusted.
  • the invention further provides, according to a further aspect, an application program with program instructions for carrying out the method according to the invention for providing an energy reserve in a power supply system.
  • the invention further provides, in another aspect, a data carrier storing such an application program.
  • the invention further provides a power supply network having a plurality of power supply systems connected thereto according to the first aspect of the invention.
  • corresponding reference numerals designate corresponding or similar units.
  • Fig. 1 shows an exemplary embodiment of a power supply system EVA 1.
  • the energy supply system 1 is suitable to obtain energy from a power grid 2 or feed into this power grid 2.
  • the power supply network 2 is a low-voltage or medium-voltage network.
  • the power supply system 1 has a measuring unit 3, by means of which the energy fed into the power supply network 2 and the energy obtained from the power supply network 2 can be measured.
  • the energy supply system 1 has at least one local power generation unit 4 for generating energy.
  • the power plant 1 four local power generation units 4-1, 4-2, 4-3, 4-4, which generate local energy.
  • two photovoltaic systems 4-1, 4-2 are provided, which generate electrical energy from sunlight, and a wind power plant 4-3, which generates electrical energy from wind energy.
  • the local power generation units 4-1, 4-2, 4-3 generate energy from renewable resources, namely, sunlight or wind power.
  • the energy supply installation 1 can also have at least one local power generation unit 4-4 which generates energy from non-renewable resources, in particular from fuels. These fuels may include, for example, fossil fuels or hydrogen.
  • the power generation units are connected via inverters 5-1, 5-2, 5-3, 5-4 to a local power distribution network 6, to which one or more local power consumption units 7-1, 7-2 are connected.
  • the photovoltaic system 4-1 is connected via an inverter 5-1 to the local network 6 of the power plant 1.
  • the energy consumption units 7-i may comprise different appliances, for example domestic appliances, machines or electric motors or heat sources such as a heat pump.
  • the photovoltaic system 4-1 generates a direct electrical current, which is converted by the inverter 5-1 into an alternating current, which is either fed via the measuring unit 3 into the energy supply network 2 or can be locally consumed by a power consumption unit 7-i.
  • At least one local energy storage unit 8 is connected to the inverter 5-1 of the first photovoltaic system 4-1 in the exemplary embodiment shown.
  • the local energy storage unit 8 is able to store or buffer energy.
  • the local energy storage unit 8 of the energy supply system 1 is a battery storage unit for storing electrical energy.
  • the local energy storage unit 8 may also be a storage unit for storing potential or kinetic energy.
  • the energy storage unit 8 also includes fuel storage units for storing chemical energy.
  • the energy storage unit 8 may also have a thermal storage unit for storing thermal energy.
  • the photovoltaic panels 4-1, 4-2 may have a plurality of solar cells that convert sunlight into electrical energy, the DC generated thereby DC being converted into AC AC by the inverters 5-1, 5-2.
  • the power supply 1 at the in Fig. 1 illustrated embodiment of a wind turbine 4-3, wherein a rotor can drive a power generator via a transmission.
  • the wind turbine 4-3 is connected to the local network 6 via a coupling element 5-3.
  • This coupling device may include a DC link in one possible embodiment.
  • the power supply system 1 may also have one or more power generation units that generate electrical energy by combustion of fuels.
  • the power plant 1 via a generator 4-4, which generates electrical energy by combustion of fuels, such as fossil fuels or hydrogen, and feeds via the coupling unit 5-4 in the local power grid 6 of the power plant 1.
  • the number and type of the different power generation units 4-i can vary and can be adapted or configured by the respective operator or user of the power supply system 1 according to his needs and the location of the power supply system 1. By providing the power supply system 1 with different types of power generation units 4-i for its power supply system 1, it reduces its dependence on a particular type of power generation.
  • an energy storage 8 is connected to the inverter 5-1, so that a memory unit is formed.
  • a first photovoltaic system 4-1 can also be connected to this inverter 5-1.
  • a plurality of energy stores 8 may be provided, which are connected to the memory unit.
  • the number and type of energy storage 8 used in the power system 1 are configurable. At the in Fig.
  • a measuring unit 3 is provided, which can measure the energy flow out of the energy supply network 2 and into the energy supply network 2 and reports to a control unit 9.
  • local measuring units can also be provided for the different energy consumption units 7-1, 7-2, which measure energy consumed by the respective energy consumption unit 7-1, 7-2 and report to the control unit 9.
  • the energy consumption units 7 - 1, 7 - 2 can be connected to the local network 6 via switching units, the switching units preferably being controllable by the control unit 9.
  • a respective measuring unit can be provided for each energy generating unit 4-i, which measures the amount of energy generated by the respective energy generating unit 4-1 and reports it to the control unit 9 of the energy supply system 1.
  • control unit 9 is integrated in the first inverter 5-1.
  • control device 9 may also be connected to the inverter via a data connection.
  • the control unit 9 controls a self-energy consumption EEV of the energy quantity generated by the at least one local energy generating unit 4-i by at least one local energy consumption unit 7-i of the energy supply system 1.
  • the control unit 9 controls or regulates the amount of energy stored in the at least one energy storage 8.
  • the control unit 9 is designed such that, after detecting at least one foreseeable future event or event EV, the energy quantity E1 of the energy that can be generated by the energy generating units 4-1 and / or an energy quantity E2 of the energy that can be generated by the energy supply network 2 and / or or an amount of energy E3 of the energy consumed by the energy consumption units 7-i, the energy reserve ER stored in the at least one local energy store 8 adapts dynamically as a function of the detected events and before these events occur.
  • the control unit 9 preferably has an evaluation unit or data evaluation unit 10, which evaluates event messages EM.
  • event messages include messages received from news sources and / or sensor data received from sensors.
  • the evaluation unit 10 evaluates the received event messages for the purpose of predicting future events relevant for the local energy supply EV.
  • the event messages EM include messages that may come from a variety of different heterogeneous news sources.
  • the event messages may include messages from sensors or sensor data originating from a variety of different heterogeneous sensors.
  • the event messages EM received by the evaluation unit 10 comprise messages which are relevant for the ongoing network operation of the power supply network 2.
  • These event messages EM are, for example, infrastructure messages regarding the public infrastructure and / or network infrastructure.
  • event messages come in one possible embodiment from a server of a network operator or a building authority.
  • a building authority can transmit a message to users in the vicinity of a construction site as an event message EM if the construction site will lead to a temporary shutdown of the local power supply network 2, for example of the local low-voltage network, for a certain period of time. If, for example, the local energy supply network 2 in this area is temporarily switched off in a street of a location due to a construction site or a construction measure, the building authority and / or the network operator can notify those users who have a power supply system Operate 1 in this area.
  • These infrastructure event messages can be transmitted to the user or the control unit 9 of the power supply system 1 via different communication channels, for example by SMS or e-mail or in any other way.
  • the evaluation unit 10 of the control unit 9 contains not only infrastructure event messages but also georeferenced weather forecast messages and / or weather warnings.
  • These event messages may in one possible embodiment come from a server of a weather forecast service.
  • these weather forecast messages or weather warnings may also originate from a server of an insurance company in which the user or operator of the energy supply system 1 is insured.
  • the evaluation unit 10 of the control unit 9 also receives event messages regarding the future fuel supply with fuels.
  • the operator of the energy supply system 1 can be informed about a future bottleneck in the supply of fuel with a specific fuel.
  • the operator of the energy supply system 1 or the evaluation unit 10 can be informed that a certain fuel, for example fuel gas, is not available for a certain time due to the interruption of a supply line.
  • the interruption of the fuel supply for example, cause the in Fig. 1 shown generator 4-4 can not be operated in the future for a certain period of time and therefore can not generate energy for the local network 6.
  • the event messages indicating the future fuel supply with the same or different fuels in one possible embodiment may come from a server of a fuel supplier and / or from a server of a news service.
  • the event messages EM can come from a variety of different heterogeneous news sources.
  • the control unit 9 has a user interface via which the at least one local energy store 8 of the energy supply system 1 stored energy reserve ER by a user or an operator of the power supply system 1 is manually adjustable.
  • the control unit 9 is integrated into the inverter 5-1 of the first photovoltaic system 4-1, ie locally in the EVA 1.
  • the control unit 9 may be a remote control unit 9, via a communication interface with the power supply system. 1 communicated.
  • the control unit 9 can be integrated, for example, in a portable device, in particular in a mobile radio device, and execute an application for dynamically adapting the stored energy reserve ER of the energy supply system 1.
  • the control unit 9 maximizes the own energy consumption EEV of the total amount of energy generated by the local energy generating units 4-i by the various local energy consumption units 7-i of the energy supply system 1.
  • the number of energy consumption units 7-i within the energy supply system 1 of a user can vary.
  • the energy supply system 1 is in one possible embodiment, a power system of a home and has as energy consumption units 7-i home appliances, such as a washing machine or an electric boiler and other equipment, such as machinery, heat pumps or the like.
  • the energy supply system 1 can also be a power supply system of a company which operates work machines of the company with the aid of the locally generated energy.
  • the controller 9 controls the energy consumption units 7-i of the energy supply installation 1 in such a way that the proportion of energy generated by the energy generation units 4-i of the energy supply installation 1 itself consumes that energy which is consumed by the energy consumption units 7-i of the energy supply installation 1 is, is maximum.
  • the portion of the energy generated by the energy generating units 4-i, which is not consumed by the energy consumption units 7-i of the energy supply system 1 itself, is fed by the controller 9 either into the energy supply network 2 or preferably in the local energy storage 8 of the power supply 1 stored.
  • the control unit 9 thus preferably maximizes the self-energy consumption EEV after optimally setting the energy reserve ER.
  • This has the advantage that the locally generated energy is for the most part also consumed locally and the EVA 1 is largely independent of the energy supply network 2.
  • the control unit 9 not only ensures a continuous maximization of the own energy consumption EEV, but according to the invention also for an optimal dynamic adjustment of the energy reserve ER within the at least one energy storage 8, so that after detection of at least one foreseeable future event EV an energy reserve ER precautionary before occurrence of these events is adapted dynamically so that the power supply system 1 can ensure the self-power even when an unfavorable overall situation over the longest possible period safely.
  • control unit 9 increases the energy reserve ER as a precaution, since the expected hailstorm on the one hand reduces the energy generated by the renewable energy sources 4-i and on the other possible interruption of freely suspended connecting lines to the power grid 2 can lead.
  • the control unit 9 of the energy supply system 1 will be the one in the local Energy storage 8 stored energy reserve ER automatically increased as a precaution.
  • the control unit 9 of the energy supply system 1 automatically stored in the local energy storage 8 energy reserve ER as a precaution, as well as off Fig. 8 and 9 seen.
  • an adjustment rate AR is also changed by the control unit 9, with which the energy reserve ER stored in the at least one energy store 8 is adjusted. This is preferably done as a function of a lead time period between the receipt of an event message EM, which announces at least one future event EV, and the actual event occurrence of the event announced by the event message. For example, if a storm with hailstorm is reported, the immediate is imminent, the adaptation rate AR, with which the stored energy reserve ER is adjusted, increased, ie, for example, the charging speed at which a battery storage 8 is charged, increased. If, for example, it is reported that the hailstorm storm will only raise in a few hours, it is possible to build up the energy reserve ER more slowly or with a lower adaptation rate AR.
  • the adaptation rate AR is selected accordingly by the control device 9 as a function of the EEV. It would therefore be optimal to provide the energy reserve ER with the locally generated energy E1. If this is not possible depending on the event, energy is used by the grid.
  • control unit 9 adjusts the amount of energy of the energy reserve ER stored in the at least one energy store 8 as a function of a predicted or probable event duration of the event announced in the event message. If, for example, it is reported in an infrastructure message that the relevant energy supply network 2 has to be switched off for a longer period of several days, the reserved energy reserve ER is correspondingly set higher. Conversely, the power grid 2 is turned off due to a construction measure only for a few hours, the retained energy reserve ER can be set correspondingly lower.
  • the amount of energy / ER which is held for an emergency case, dynamically adjusted.
  • the amount of stored energy reserve ER can be influenced, for example, by parameters such as probability of failure and failure duration.
  • the controller 9 continuously ensures maximization of the own energy consumption EEV as well as for an optimization of the energy reserve or emergency reserve ER. This means that in the optimal case, the locally generated energy is consumed 100% locally and / or stored locally.
  • Fig. 2A, 2B, 2C show various embodiments of the power supply system 1 according to the invention with respect to the arrangement of the control unit 9.
  • the control unit 9 is integrated in an inverter 5-1 a local power generation unit 4-1 and preferably has a user interface 11.
  • the user or the operator of the power plant 1 has the ability to manually set the reserve energy reserve ER .
  • the control unit 9 or the evaluation unit 10 integrated therein receives a continuous stream of events or events EV which are continuously evaluated in order to automatically and dynamically adapt the energy reserve ER as a precaution.
  • the currently reserved energy reserve ER can be displayed to the respective user via a display of the user interface 11.
  • the user can be informed via the user interface 11 of the continuous stream of event messages EM or events EV, which cause the dynamic precautionary adjustment of the energy reserve ER.
  • the user via the user interface 11 in a possible embodiment, in turn manually enter event messages EM, which are taken into account by the evaluation unit 10 of the control unit 9 in the adjustment of the energy reserve ER.
  • Fig. 2B shows as a further embodiment, a control unit 9, which is integrated in a portable device 12 and communicates via a transceiver 13 also contained therein with a remote transceiver 14 via antennas 15, 16 wirelessly.
  • the transceiver 14 is integrated in the illustrated embodiment in the inverter 5-1.
  • the Energy reserve ER in the energy storage 8 is adjusted automatically and / or manually in response to control signals that the transceiver 14 receives wirelessly from the remote control unit 9.
  • illustrated portable device 12 may be, for example, a mobile device or a mobile phone of a user of the power system 1.
  • the evaluation unit 10 contained in the control unit 9 evaluates a stream of events or event messages and generates corresponding control signals for setting the energy reserve ER, wherein the control signals for setting the energy reserve via a radio interface from the mobile device 12 to the transceiver 14 of the inverter 5 1 transferred.
  • Fig. 2C shows a further embodiment in which a control unit 9 is connected via a data network 17 to the inverter 5-1.
  • the data network 17 may be a local area network, WAN / Internet, ... the power system 1 or a data bus.
  • the in the Fig. 2A, 2B, 2C illustrated embodiments can also be combined.
  • Fig. 3A shows a simple flowchart for illustrating an embodiment of the inventive method for providing an energy reserve ER at a power plant 1.
  • a first step S1 at least one future event or event EV is detected.
  • This event or event thereby influences the amount of energy E1 of the energy that can be generated by the energy generating units 4-i of the energy supply system and / or the amount of energy E2 of the energy obtainable from the energy supply system 2 by the energy supply system 1 and / or the amount of energy E3 of energy consumption units 7-i the power supply 1 consumed Energy.
  • the events EV can affect both the producible energy E1, the consumable energy E2, and the consumed energy E3.
  • a storm warning as an event can announce a storm, which is expected to lead to a serious reduction of the generatable solar energy, endangerment of the free-hanging interconnections with the local power grid 2 and the expected energy E3 consumed by electric heaters 7-i.
  • the energy reserve ER stored in at least one local energy store 8 of the energy supply system 1 is adapted as a function of the detected future events prior to their occurrence. If, for example, a future storm is announced as the event EV, which leads to an anticipated reduction of the producible energy E1, to the probable reduction of the consumable energy E2 and possibly simultaneously to the increase of the energy E3 to be consumed, then in step S2 the energy stored in the local energy store 8 stored energy reserve ER as a precautionary increase before the onset of the storm dynamically.
  • the regulation takes place in dependence of the EEV, so that the ER can be provided with a high percentage of the locally producible energy E1. If the energy E1 is not sufficient to reach the required ER, the memory is also charged via the network. For example, the control can also intentionally switch off consumers in order to achieve the required energy reserve ER.
  • Fig. 3B shows a further embodiment of the inventive method for providing an energy reserve ER at a power plant.
  • step S1 as in the Fig. 3A illustrated embodiment, at least one future event EV detected by evaluation of event messages EM.
  • step S2 the energy reserve ER is dynamically adjusted as a function of the detected future event before it enters.
  • a self-energy consumption EEV of the amount of energy generated by the local energy generating units 4-i of the energy supply system 1 is then maximized by local energy consumption units 7-i of the energy supply system 1 when the energy reserve ER is set.
  • Fig. 4 shows a further flowchart for illustrating an embodiment of the inventive method for providing an energy reserve ER.
  • the reserved energy reserve ER is set to a configurable starting value.
  • step S4-3 the energy supply system 1 is operated in a normal operating mode with the energy reserve ER set, wherein preferably the control unit 9 of the energy supply system 1 the own energy consumption EEV of the energy generated by the local power generation units 4-i of the power plant 1 through the local energy consumption units 7th -i of the power supply 1 maximized.
  • the evaluation unit 10 of the control unit 9 an event EV is reported in step S4-4, in step S4-5, the dynamic adjustment of the local energy reserve ER to a new value. Thereafter, the process returns to step S4-3 (normal operation) until the next event EV is notified.
  • Fig. 5 shows a further embodiment of a power supply system 1 according to the invention.
  • the power supply system has 1 via a local processing unit 18 for processing event messages EM.
  • event messages comprise, on the one hand, messages originating from a multiplicity of different heterogeneous message sources and, on the other hand, sensor data originating from a plurality of different heterogeneous local sensors 19 and / or remote sensors 21.
  • the conditioning unit 18 may, as in Fig. 5 shown upstream of the control unit 9. Alternatively, the conditioning unit 18 may also be integrated in the control unit 9.
  • the processing unit 18 is in the in Fig. 5 illustrated embodiment connected to a data network 20, which may be a local area network or a national data network, such as the Internet, act.
  • the rendering unit 18 may perform a pre-filtering and / or pre-processing of the event messages EM, in particular messages originating from a multiplicity of different message sources 22-i and / or sensor data received from a plurality of different remote or local sensors 19 , 21-i are from.
  • the rendering unit 18 prefilters and preprocesses the received event messages EM for reliability. Event messages that originate from trusted news sources are preferably weighted higher than event messages from unknown news sources. For example, longer-term weather forecasts may be considered untrustworthy.
  • the filtered and / or preprocessed event messages EM are reported by the processing unit 18 to the evaluation unit 10 of the control unit 9.
  • the evaluation unit 10 performs a dynamic adaptation of the energy stored in the at least one local energy storage unit 8 of the power plant 1 Energy reserve ER depending on the preprocessed event messages or events by.
  • the evaluation unit 10 make a dynamic adjustment of the adaptation rate AR for adjusting the energy reserve ER.
  • the event messages received by the rendering unit 18 include different messages originating from different news sources.
  • a possible message source is, for example, the server of the network operator of the power supply network 2 or the server of a building authority.
  • the first message source 22-1 is formed by the server of the network operator and delivers as event messages infrastructure messages concerning the future operation of the power supply network 2.
  • the second message source 22-2 is, for example, the server of a building authority, which reports construction measures in the area of the local power supply network 2 to the users or power supply system operators concerned.
  • another message source 22-3 provides geo-referenced weather forecast messages or future fueling concerns with a particular fuel.
  • the event messages EM sensor data and / or parameters may have, in particular sensor data and / or parameters of the local power generation units 4-i, sensor data and / or parameters of the local power units 7-i, sensor data and / or parameters of the local energy storage 8-i and / or sensor data and / or parameters of the power supply network 2, for example the operating frequency f of the power supply network 2.
  • Fig. 6 shows an embodiment of a possible combination of power supply systems 1 according to the invention, which are connected to a power grid 2.
  • the first power supply system 1A is shown in detail and corresponds to the in Fig. 1 shown power supply system.
  • the three different power supplies 1A, 1B, 1C are connected to a data network 20A so that they receive event messages EM and EV events, respectively, in a stream of event messages.
  • This data network 20A distributes preprocessed event messages to the controllers 9 of the various power systems 1A, 1B, 1C, as in FIG Fig.
  • the pre-filtering or pre-processing of the event messages EM is done by a central processing unit 18, which is provided between a first data network 20A and the second data network 20B.
  • the two data networks 20A, 20B may also form an integrated unified data network.
  • the event messages EM received from different message sources 22-i or remote sensors 21-i are supplied to the rendering unit 18 via the data network 20A, which pre-processes the plurality of different event messages EM.
  • the processing unit 18 also performs a reformatting of the event messages EM in a suitable for the evaluation unit 10 data format.
  • the processing unit 18 can be implemented, for example, in a server of a manufacturer of a power supply system EVA.
  • the conditioning unit 18 filters out the messages or event messages originating from a multiplicity of different heterogeneous message sources 22-i and the sensor data originating from a plurality of different heterogeneous sensors with regard to their relevance for the local energy supply of the relevant power supply systems 1A, 1B, 1C.
  • the conditioning unit 18 may perform a preprocessing of the received event messages, in particular a data format conversion.
  • the processing unit 18 additionally weights the received event messages EM or events with regard to the reliability of the data source, ie the reliability of the respective sensor or the respective message source.
  • the filtered and / or preprocessed event messages are transmitted by the conditioning unit 18 to the various control units 9 for dynamically adapting the energy reserves ER A , ER B , ER C stored in the respective energy store 8 of the various energy supply installations 1A, 1B, 1C via the data network 20B.
  • the preprocessed event messages for the power supply installations 1A, 1C are also transmitted wirelessly via an access point 23 and / or a base station 24 to portable user terminals 12A, 12B of the two associated users or users U A , U C of the two power supply installations 1A, 1C ,
  • the preprocessed event messages for the power supply installations 1A, 1C are also transmitted wirelessly via an access point 23 and / or a base station 24 to portable user terminals 12A, 12B of the two associated users or users U A , U C of the two power supply installations 1A, 1C ,
  • the preprocessed event messages for the power supply installations 1A, 1C are also transmitted wirelessly via an access point 23 and
  • the portable devices 12A, 12C mobile devices which each have a control unit 9A, 9C, which can perform an application for dynamic adjustment of the stored energy reserve ER A , ER C of the respective power supply facilities 1A, 1C.
  • the application executed on the mobile radio device 12A can calculate the necessary optimum energy reserve ER A and For example, the user U A display via a display.
  • the user U A can subsequently release or confirm the calculated energy reserve ER A to be adapted for his energy supply system 1A via a user interface of his mobile radio device 12A.
  • the calculated energy reserve ER A is then transmitted by the mobile radio via the access point 23 and the data network 20B to the control unit 9A of the power supply system 1A, which stores the energy stored in the energy store 8 Energy reserve ER A adapts accordingly.
  • the user U A upon receiving an event message EM from the processing unit 18, for example in the event of a storm warning, the user U A can manually adjust the energy reserve ERA via the user interface of his mobile radio device 12A.
  • the application executed on the mobile radio device 12A can calculate and display to the user a recommendation value for the energy reserve ER A to be set, wherein the user has the option of confirming or manually changing the calculated energy reserve ER A and only then to the control unit 9A to transfer its power system 1A. If, for example, a business traveler receives an event message EM relevant to his energy supply system 1 on his mobile device 12 on a business trip, he is able to adjust the energy reserve ER accordingly without having to be present.
  • Fig. 7A, 7B show diagrams to illustrate the operation of the in the Fig. 5 . 6 Processing unit 18.
  • Processing unit 18 receives a stream of heterogeneous event messages EM, which may come from a variety of news sources and / or sensors.
  • the processing unit 18 filters out the relevant events or event messages for the various energy supply installations 1A, 1B, 1C, as in FIG Fig. 7B shown.
  • the first event message EM1 relates to the event or event EVB1 relevant for the energy supply installation 1B
  • the second event message EM2 reporting an event or event EVC1 relevant for the third energy supply installation 1C.
  • the third and sixth event message EM3, EM6 relates to the first power supply system 1A of the user U A , who receives the corresponding events or events via his mobile device 12a, for example.
  • the processing unit 18 thus distributes event messages EM to the relevant control units 9 of the respective affected energy supply systems. If, for example, the first event message EM1 is a weather warning which is relevant only for a certain area in which the energy supply installation 1A is located, only the control unit 9 of this energy supply installation 1A receives this event from the conditioning unit 18. Furthermore, the conditioning unit 18 may perform a pre-filtering of the received event messages EM. At the in Fig. 7A, 7B For example, the event message EM5 is filtered out because it comes from an unreliable message source.
  • the event messages EM and the events EV generated therefrom are transmitted cryptographically protected in order to prevent manipulation.
  • the event message EM6 reports an event which is relevant both for the first energy supply installation EVA 1A and for the third energy supply installation EVA 1C.
  • This event message EM6 may be, for example, an infrastructure report from a building authority announcing a construction work in a road area in which both the first power plant 1A and the third power plant 1C are connected to the power grid 2.
  • the 8A, 8B illustrate the operation, which has been previously described several times, the control unit 9 in a possible embodiment of the power supply system 1.
  • the control unit 9 receives the events or an event message and increases depending on this event message or the event received the Energy reserve ER from a starting value SW to a value W1, as in Fig. 8B shown.
  • the control unit 9 Upon arrival of a further event message, which is pre-filtered or preprocessed by an evaluation unit, the control unit 9 further increases the energy reserve ER to a value W2.
  • the control unit 9 reduces the energy reserve ER to a value W3, as in FIG Fig. 8B shown.
  • Figs. 9A, 9B show at a time t1
  • the control unit 9 receives an event message or an event EV1 and increases the energy reserve with a relatively high adaptation rate AR1 starting from a starting value SW to a value W1, as in Fig. 9B shown.
  • the control unit 9 receives another event message or event EV2 and increases the energy reserve with a relatively low adaptation rate AR2 to a higher value W2, as in FIG Fig. 9B shown.
  • the control unit 9 dynamically reduces the energy reserve ER with a negative adaptation rate AR3.
  • the amount of adaptation rates AR1, AR2, AR3 depends on the information contained in the associated event messages.
  • the corresponding adaptation rate AR in the control unit 9 is set relatively high.
  • the adaptation rate AR is adjusted accordingly taking into account the own energy consumption EEV. If the required energy reserve ER is not possible as a function of the event EV and the resulting adaptation rate AR with the locally generated energy, the memory is additionally charged via the network.
  • the energy reserve ER and the adaptation rate AR can also be adapted to the season or geographic location. Thus, in winter, when the photovoltaic system can rather produce less energy, the energy reserve ER can generally be kept at a higher level.
  • Fig. 10 shows another diagram to illustrate influencing factors on the adaptation rates AR, as in Figs. 9A, 9B are shown.
  • the event or event reported to the control unit 9 may in one possible embodiment indicate a lead time period VZR and an event duration ED.
  • the control unit 9 changes the adaptation rate AR, with which the energy reserve ER stored in the at least one energy storage unit 8 is adjusted as a function of the lead time period VZR between the receipt of an event message EM at the time t1, which announces at least one future event, and the actual event occurrence of the event announced by the event message at time t2.
  • control unit 9 can adjust the amount of energy of the energy reserve ER stored in the at least one energy storage unit 8 as a function of a predicted or probable event duration ED of the event EV announced in the event message.
  • a weather alert message reported to the control unit 9 at time t1 may indicate that the weather front will hit the position of the power plant 1 in about five hours and then that weather will last about two days at that location.
  • the amount of energy that is available for the emergency power case through an energy storage 8 be dynamically adjusted.
  • the adaptation takes place taking into account the own energy consumption EEV.
  • the triggering of this change can by internal and / or external specifications or events.
  • the adjustment of the energy reserve ER automatically takes place continuously as a function of the received event messages.
  • the adjustment of the energy reserve ER occurs periodically at predetermined time intervals.
  • the event messages EM can be transmitted in any data formats to the processing unit 18 or the control unit 9, for example as an e-mail, SMS or in a data packet.
  • the event messages or messages can be transmitted either wirebound or wireless from the news sources or sensors to the processing unit 18 and the control unit 9.
  • the energy E1 that can be generated by the local energy generating units 4-i depends on the particular configuration of the energy supply system.
  • a first energy supply system 1-1 has three wind turbines and no photovoltaic system, a second energy supply 1-2 1-2 wind turbines and a photovoltaic system, a third energy supply 1-3 a wind turbine and two photovoltaic systems and a fourth power supply 1-4 no wind turbine and three photovoltaic systems.
  • the energy E1 that can be generated by the various energy supply installations 1-i in bad weather with high wind strengths and low solar irradiation depends on the configuration or the composition of different local energy generation units.
  • the fourth power supply system 1-4 which has only photovoltaic systems, generates relatively little energy.
  • the control unit 9 Consequently, the energy reserve ER not only in response to the received event messages or events, but in addition depending on the stored local configuration CONFIG the respective power plant 1. In the example shown in a rearing weather front with lots of wind and little sun, the power plant.
  • the energy reserve ER is reduced by the control unit 9, while in another configuration of the power system 1 with little wind turbines and many photovoltaic systems, the energy reserve ER must be increased when raising a bad weather front with lots of wind and little sun ,
  • the system configuration in particular the nature and performance of the various power generation units 4-i, stored in a local configuration data memory of the control unit 9 and is taken into account in the evaluation of the event messages EM for adjusting the energy reserve ER.
  • the energy reserve ER is dynamically adjusted in the method according to the invention, wherein this can also be done due to mains frequency fluctuations of the power supply network 2. If the measured network frequency f of the power supply network 2 is relatively low and is below a nominal network frequency f0, the energy reserve ER can be set slightly higher by the control unit 9, since the probability of a network failure increases. In addition to or instead of measuring the mains frequency, the harmonics can also be measured and the ER can be set accordingly.
  • control units 9 of the various energy supply systems 1 communicate with each other via a communication interface. So, for example the various control units 9 of the various energy supply systems 1 mutually report their currently reserved energy reserves ER.
  • the energy reserve or emergency reserve ER of a local energy supply system 1 is set to be optimally optimized in order to make the local energy supply as robust as possible with respect to future scenarios or event sequences and to keep the own energy consumption EEV correspondingly high.
  • the probability of failure of the local energy supply can thus be minimized or the remaining operating time remaining can be maximized when certain scenarios or sequences of events occur.

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  • Engineering & Computer Science (AREA)
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EP15199489.4A 2015-12-11 2015-12-11 Procédé de préparation d'une réserve d'énergie pour une installation d'alimentation en énergie Withdrawn EP3179593A1 (fr)

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EP15199489.4A EP3179593A1 (fr) 2015-12-11 2015-12-11 Procédé de préparation d'une réserve d'énergie pour une installation d'alimentation en énergie
MX2018007062A MX2018007062A (es) 2015-12-11 2016-12-09 Metodo para proporcionar una reserva de energia para un sistema de suministro de energia.
BR112018011381-6A BR112018011381B1 (pt) 2015-12-11 2016-12-09 Sistema de suprimento de energia eva, unidade de controle para um sistema de suprimento de energia e método para provisão de uma reserva de energia em um sistema de suprimento de energia
PL16816232T PL3387727T3 (pl) 2015-12-11 2016-12-09 Metoda udostępniania rezerwy energii dla systemu energetycznego
CN201680072651.9A CN108370161B (zh) 2015-12-11 2016-12-09 用于为供能系统提供能量储备的方法
ES16816232T ES2820799T3 (es) 2015-12-11 2016-12-09 Procedimiento de provisión de una reserva de energía para un sistema de suministro de energía
AU2016368519A AU2016368519B2 (en) 2015-12-11 2016-12-09 Method for providing an energy reserve for an energy supply system
US15/778,575 US10680444B2 (en) 2015-12-11 2016-12-09 Method for providing an energy reserve for an energy supply system
PCT/EP2016/080407 WO2017097967A1 (fr) 2015-12-11 2016-12-09 Procédé de fourniture d'une réserve d'énergie pour une installation de distribution d'énergie
EP16816232.9A EP3387727B1 (fr) 2015-12-11 2016-12-09 Procédé de préparation d'une réserve d'énergie pour une installation d'alimentation en énergie

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CN108370161A (zh) 2018-08-03
BR112018011381B1 (pt) 2023-01-10
WO2017097967A1 (fr) 2017-06-15
MX2018007062A (es) 2019-02-14
AU2016368519B2 (en) 2019-12-05
ES2820799T3 (es) 2021-04-22
AU2016368519A1 (en) 2018-07-05
EP3387727B1 (fr) 2020-07-08
PL3387727T3 (pl) 2021-02-08
US20180351363A1 (en) 2018-12-06
CN108370161B (zh) 2021-08-13
EP3387727A1 (fr) 2018-10-17
BR112018011381A2 (pt) 2018-12-04

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